IssueJournal/Yearbook Volume Issue Page Issues Volume 61 (2013) Issue 1 (Mar 2013) , pp. 5-286 Volume 60 (2012) Issue 4 (Dec 2012) , pp. 673-859 Issue 3 (Sep 2012) , pp. 371-667 Issue 2 (Jun 2012) , pp. 185-368 Issue 1 (Mar 2012) , pp. 3-178 Volume 59 (2011) Issue 4 (Dec 2011) , pp. 371-579 Issue 3 (Sep 2011) , pp. 247-366 Issue 2 (Jun 2011) , pp. 125-243 Issue 1 (Mar 2011) , pp. 3-115 Volume 58 (2010) Issue 4 (Dec 2010) , pp. 463-716 Issue 3 (Sep 2010) , pp. 347-458 Issue 2 (Jun 2010) , pp. 217-342 Issue 1 (Mar 2010) , pp. 3-207 Volume 57 (2009) Issue 4 (Dec 2009) , pp. 297-398 Issue 3 (Sep 2009) , pp. 195-292 Issue 2 (Jun 2009) , pp. 123-188 Issue 1 (Mar 2009) , pp. 3-116 Most Downloaded Articles Joint reactions in rigid or flexible body mechanisms with redundant constraints by Wojtyra, M. and Frączek, J. Modified current differencing transconductance amplifier – new versatile active element by Malcher, A. Particle swarm optimization of artificial-neural-network-based on-line trained speed controller for battery electric vehicle by Ufnalski, B. and Grzesiak , L.M. Laser modification of the materials surface layer – a review paper by Kusinski, J./ Kac, S./ Kopia, A./ Radziszewska, A./ Rozmus-Górnikowska, M./ Major, B./ Major, L./ Marczak, J. and Lisiecki, A. Gas sensors based on nanostructures of semiconductors ZnO and TiO2 by Pustelny, T./ Procek, M./ Maciak, E./ Stolarczyk, A./ Drewniak, S./ Urbańczyk, M./ Setkiewicz, M./ Gut, K. and Opilski, Z. View Top 20 Most Downloaded Articles Previous Article Next Article Go to table of contents Download full text pdf (PDF, 1 MB) Modelling of hydro-thermo-chemo-mechanical phenomena in building materials D. Gawin1 / M. Koniorczyk1 / F. Pesavento2 1Department of Building Physics and Building Materials, Lodz University of Technology, 6 Politechniki Ave., 90-924 Lodz, Poland 2Department of Civil, Architectural and Environmental Engineering, University of Padova, Via Marzolo 9, 35131 Padova, Italy Citation Information: Bulletin of the Polish Academy of Sciences: Technical Sciences. Volume 61, Issue 1, Pages 51–63, ISSN (Print) 0239-7528, DOI: 10.2478/bpasts-2013-0004, May 2013 Publication History: Published Online: 2013-05-01 Abstract A general approach to modelling chemical degradation processes in building materials, due to combined action of variable hydrothermal, chemical and mechanical loads, is presented. Mechanics of multiphase porous media and damage mechanics are applied for this purpose, and kinetics of degradation processes is described with evolution equations based on thermodynamics of chemical reactions. The mass-, energy - and momentum balances, as well as the evolution equations, constitutive and physical relations are briefly summarized. Then, the model governing equations are numerically solved with the finite element method. Three examples of the model application for analyzing degradation processes of building materials are presented and discussed. The first one deals with capillary suction of the salt solution by two different building materials, the second one with the salt crystallization during drying of a brick wall, and the third one concerns calcium leaching from a concrete wall due to the chemical attack of pure water under pressure gradient at two different temperatures.
